Revision as of 15:16, 30 August 2024 edit Brwyn (talk \| contribs) 16 edits Add discussion of perplexity ← Previous edit		Revision as of 17:20, 30 August 2024 edit undo Brwyn (talk \| contribs) 16 edits m fix equation Next edit →
Line 36: where <math>H(P_i)</math> is the shannon entropy <math>H(P_i)=-\sum_jp_{j\|i}\log_2p_{j\|i}.</math> The perplexity is a hand-chosen parameter of t-SNE, and as the authors state, "perplexity can be interpreted as a smooth measure of the effective number of neighbors. The performance of SNE is fairly robust to changes in the perplexity, and typical values are between 5 and 50."<ref name=MaatenHinton/>.

T-distributed stochastic neighbor embedding: Difference between revisions